Data Structures
Rust Arrays
Working with Arrays
Rust arrays are fixed-length typed sequences with indexing.
Introduction to Rust Arrays
In Rust, arrays are a fundamental data structure that stores elements of the same type in a contiguous block of memory. Arrays in Rust have a fixed length, meaning you cannot resize them once they are defined. This characteristic makes them efficient for accessing and manipulating data through indexing.
Declaring and Initializing Arrays
To declare an array in Rust, you specify the type of elements it will hold, followed by the number of elements in square brackets. You can initialize an array with specific values or use a default value for all elements.
Accessing Array Elements
You can access elements in an array using indexing, which starts at zero. This allows you to retrieve or modify elements at specific positions.
Array Length and Iteration
Arrays have a len method that returns the number of elements they contain. You can iterate over arrays using a for loop to process each element.
Arrays vs. Vectors
While arrays are fixed in size, Rust also provides a more flexible collection type called vectors. Vectors are similar to arrays but can grow or shrink in size. Vectors are part of the standard library and are often used when the size of the collection is not known at compile time.
